Half to vincent harter



N0 MOGGL) 2 Sheets-Sheet 2. B. S. HERRMANN.- BREEGH LOADING PIRE ARM.

No. 415,509. Patented Nov. 19189.

UNITED STATES PATENT OFFICE.

BRUNO STANISLAUS HERRMANN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE HALF IO VINCENT HARTER, OF SAME PLACE.

BREECH-LOADING FIRE-ARM..

SPECIFICATION forming part of Letters Patent No. 415,509, dated November 19, 1889.

' Application nea nay 7,1889. serial No. 809,953. (No model.)

To all whom it maj/concern.-

Be it known that I, BRUNO STANISLAUS HEnRMANN,a subject of the Emperor of Germany, residing at Chicago, inthe county of Cook and State of Illinois, have invented certain new and useful Improvements in Magazine-Guns, of which the'following isa speciiication, reference being had therein to the accompanying drawings.

*This invention relates to magazine fire-arms of the class in which the breech of the-barrel is closed by aboltsliding in line with the axisof the barrel and operated by a lever from below, the movement of said lever withdrawing the spentcartridge, cockin g the hammer,` recharging the gun, and relooking the' breech mechanism; and it consists, principally, in the construction and arrangement of the .breechlocking bolt, in combination with the breech-chamber piece of the gun and with the bolt-operating lever, th` object being to` produce a more simple, perfect, and safe locking device, all as will be hereinaftermore fully described and speciiically claimed.

In the accompanying' drawings, Figure 1 represents a longitudinal vertical section of the gun with the parts in position as immediately after shooting, and Fig. 2 is a sectional elevation showing the breech-bolt withdrawn and ready for reloading. Fig. 3 is a top view of the gun with the parts in same position as in Fig. l. `Fig. 4 is a transverse sectional view of the breech-bolt and the bi iurcated end of the bolt-operating lever. Fig.

5 is a section on line 5 5 in Fig. 1. Fig. 6 is a side elevation, and Fig. 7 a bottom view, of the breech -bolt detached, Aits parts being shown in relative position after locking said breech-bolt ready for firing; and Fig. 8 is a bottom view of the breech-bolt, its parts being in relative position as when Withdrawn from the breechof the barrel for reloading the gun.

Corresponding referential characters in the several figures of the drawings designate like parts.

A denotes the breech end of the barrel, and B the magazine-tube, arranged below said barrel to be parallel therewith. I

C is the breech-mechanism chamber, and D the gunstock.

The breech-locking bolt consists of three pieces, E, F, and G, all cylindrical andof equal exterior diameter, to be guided in the cylindrically-bored upper'portion of chamber C to move in line with the'axisof barrel A.

drical projection 1, of smaller diameter, and tle piece G of the bolt has a forward projection 2, also of a smaller diameter, and upon these projections 1 and 2 is sleeved the tubuthereon, and the pieces E and G are bored through their axes for the firing-pin H, extending the entire length of the bolt E F G, with its forward end reduced in diameter to provide a shoulder, and with a spiral spring 3 interposed between said -shoulder and a shoulder in the bore of piece E for pushing said pin H rearward. This pin H is held in the bolt by a screw 4, tapped through the top of I"bolt-piece G, with its point entering a groove 'sunk into pin'H tol allow a suicient longitudinal sliding movement therein. The piece E of the bolt has a longitudinal rib or feather 6, the piece F a rib or feather 7, and the piece ers 6, 7, and 8 -projecting into a longitudinally-slotted opening 9 in the top of the breech-chamber piece C, and in its forward hand` side, providing a "shoulder 10 and an opening large enough for inserting a cartridge. By moving the bolt forward until the piece E has closed the breech en d of the barrel A a partial revolution of piece F will bring the Vfeather7 to bear against shoulder 10, and will thus securely lock the bolt in this position. The feather G of the piece E of the breechbolt, is grooved longitudinally for a spring l1, having a forwardly-projecting hook 12,which will graspthe rear ange of the cartridge, and the rearwardly-extended end of this spring 11 has a downwardly-projecting lug 13, engaging a segmental grooove 14 of piece F of the bolt for coupling the pieces E and F, at the same time allowing a rotating movement of piece lF. Piece E of the bolt is also `a spring 15, being diametrioally opposite to spring l1. ing beyond the forward end of piece E, and.

end this slot 9 is widened toward the right/f This spring 15 has a head project-l The piece E of thel bolt has a rearward cylinlar piece F, so as to slide and turn loosely G a rib or feather 8, all threeribs or feathlongitudinally grooved'in its bottom side for f tridge-shell, which, as soon as its end clears the breech of the gun-barrel,will be thrown upward by the force of spring 15, its chamfered head, to release itself, pushing the lower flange of t-hecartridge-shell forward, and thereby the forward endof the cartridge-shell upward, to

be thrown out through the widened portion of l slot 9 of the breech-chamber piece C. The piece F, sleeved upon the forward projection 2 of piece G of the bolt, is slotted longitudinally from the rear forward a short 5distance, then laterally a short distance, which slot 16 is then extended forwardly on a spiral line, and the head of a screw 17, tapped into piece G of the bolt, engages this spiral slot 16. in a manner that a telescopic move-A ment'of the pieces F and G will impart a rotatingmovementto piece F. While the bolt is in its retracted position for reloading the gun the parts E, F, and G'rare in the relative positions shown by Figs. 2 and 8, when the feathers 6, 7, and 8 are inline with eachother and in the narrow portion of slot 9 .in the top of the breech-chamber piece C, which will prevent either piece E, F, or G from rotating, thus holding them -in linewhile the bolt is being pushed forward until piece E of the Abolt is in close contact with the breech end of barrel A,where the projecting end of 'springs 11 and 15 will enter notches provided for their reception, and whereby at `the 'same time the rear end of feather 7` is brought in line laterally with shoulder 10 of the slotted opening of breech-chamber piece C, when a further forward movement of piece G, by the engagement of its screw-head 17 with the spiral slot 16 of piece F,will rotate saidpiece F, thereby turning the feather 7 to bear against shoulder 9 and locking the bolt firmly in its assumed position. lVhen retracting 'the bolt, the longitudinal movement of piece G, to which the power is applied, will first rotate the pieceF again to move the feather 7 clear of vtheshoulder 10 and into line with feather 8 beforethe pieces E and lF will move with4 it longitudinally, the spiral slot 16'in either case bring-l ing about suoch rotating movement.

The bolt is operated by a lever L, pivoted in the lower part of the breech-chamber piece C on a pin 18, and having a'bifurcated up-v ward end 19, grasping the notched or recessed sides of bolt-piecel G. The downward-proj ecting end of this lever is conveniently curved and shaped to provide a handle, which, when turned-against the stock of the gun, will at the same time form the trigger-guard. When swinging the handle of this lever L rearward, the bolt is moved forward, and vice versa'. The hammer M is pivoted into the rear portion of the receiver C on a pin 20, the hub 0f v'this hammer at the v.Sametime forming the tumbler, provided with shoulder forl'thet-rigger N to engage and hold the hammer M'cocked. The hub or tumbler part of this hammer M is also lconnected by a link with the end of a leaffspring O, that swings the hammer when releasedby pulling the trigger N; When re`I tracting the bolt'E F G forreloadi'ng the gun by swinging the lever L, the hammer M at the same time is being pushed back by'such bolt, 'and vis swung vto its cocked position, as shown by Fig. 2, in which position it `will remain while the bolt is being moved forward again for'closing the vbreech of the barrel, and then by pulling the trigger the hammer M will strike the rearwardly-projecting end of the firing-pin `I-I for exploding the cartridge, as-

shown by Fig. 1. v The cartridge-carrier P,'provided to receive a4 cartridge from themagazine-tube Baby-the expansion` of aspiral spring in such tube B,

and to elevatethe same into position for the end of bolt-pieceE to push it.' forward vinto the vbarrel A, and then to be locked-behind it,

consists of an-arn1 P, pi'voted in breech-chamv ber piece C on a pin 21. caved for holding the cartridge withy a shoulder 22, against which the yrear .end ofthe cartridge will abut, while when'elevated'the end of the This arm P is con-V arm will provide a butt-end againstthe next l following'cartridge, to be retained in tube B until said arm is dropped toits lower position again. Directly over the pin 21 the arm P `has acam projection 23, engaging at the end of the forward movement of the bolt with -a its lower position, and 4at the end of a' rearposition, a leafspring Qf bearing against either one of two fiat faces of lever P, below pin 2l, for holding said arm in either one ofv I I O 'the two positions. y v

- Then this gun is used as a repeater, the

motion of the lever Lextracts the spent shell of the previous charge, cocks the hammer,

recharges the gun, and relocks the breech# bolt, while when used as a single-loader the IOO "tooth 24 of piece G fortilting the arm P to cartridge is inserted through the widened front portion of slot 9 in the breech-chamber piece, through whichalso the spent cartridges are removed. What I claim is- A 1.' In a magazine fire-arm, the breech-closing bolt guided in the receiver to move longitudinally inline with the axis of` the barrel, said breech-bolt consisting of pieces E, F, and G, all loosely connected, and the pieces E and F telescoping with eachother and coupled by a screw or stud rigid with one piece and engaging a spiral groove of the other piece, and a rib or feather integral with piece F and in juxtaposition with such rib or feather while the bolt is closed against the breech of the barrel, and a shoulder 10 in the receiver, all in a manner that a forward movement of piece G of the bolt will impart a rotating movement to piece F and to the rib or feathery loosely connected, and the middle piece F sleeved upon the rear piece G and coupled therewith by a screw or stud rigidly secured to piece G and engaging spiral groove 16 of piece F, whereby a telescoping movement will impart a rotating movement to piece F, and each section E, F, and G provided with a rib or feather, in combination with the receiver providing` a guide for the breech-bolt and for the ribs 0r feathers thereof, and a shoulder 10 in juxtaposition for the feather of the middle piece F to turn against with the rotation of such piece for locking the bolt automatically after closing the breech of the barrel, all substantially as set forth.

3. In a magazine lire-arm, the breech-bolt composed of pieces E, F, and G, the pieces E and F beingloosely connected and the piece F being sleeved upon the forward end of piece G, providing a telescopic movement and having a spiral slot 16,`eng`aging a screw-head 17 of piece G, and the several pieces having longitudinal ribs or feathers moving in a slot 9 lof the receiver, also provided with a shoulder 10 for the feather 7 to be turned against by the forward movement applied to piece G by vmeans of a bifurcated lever L, engaging the recessed bearings of said piece G, that t-he closing of the breech of the barrel by the bolt will automatically lock such bolt, substan tially as set forth.

4. In a magazine fire-arm of the class described, tlie cartridge-carrying arm P, swinging on pin 2l, having cam projection 23, engaging the teeth 24 and 25 of the longitudinally-guided breech-bolt, and having two flat faces angular to each other below the pivotpin as a bearing for the end of a leaf-spring Q, substantially as and for the purpose set forth.

In testimony whereof I aix my signature in presence of two witnesses.

B. STANISLAUS HERRMANN. Vitnesses':

OTTO LUBKERT. 

